National Museum of Nuclear Science & History
J. D. Hayes worked for the Tennessee Eastman Corporation at the Y-12 Plant.
Raphael Semmes worked for Clinton Laboratories at the X-10 Reactor.
James Serduk was a staff worker at Los Alamos during the Manhattan Project.
J. I. Mitchell worked for the Roane-Anderson Company.
Joseph Mullaney was a staff worker at Los Alamos during the Manhattan Project.